US 12,422,537 B2
Method and apparatus for detecting signal propagation type
Zhuoqi Zeng, Shanghai (CN); Huajun Yu, Shanghai (CN); and William Wang, Shanghai (CN)
Assigned to Robert Bosch GmbH, Stuttgart (DE)
Appl. No. 17/272,407
Filed by Robert Bosch GmbH, Stuttgart (DE)
PCT Filed Aug. 31, 2018, PCT No. PCT/CN2018/103492
§ 371(c)(1), (2) Date Mar. 1, 2021,
PCT Pub. No. WO2020/042143, PCT Pub. Date Mar. 5, 2020.
Prior Publication US 2021/0318422 A1, Oct. 14, 2021
Int. Cl. G01S 13/02 (2006.01); G01S 7/41 (2006.01); G01S 13/58 (2006.01); G01S 13/89 (2006.01)
CPC G01S 13/0209 (2013.01) [G01S 7/41 (2013.01); G01S 13/58 (2013.01); G01S 13/89 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A method for detecting a type of signal propagation, the method comprising:
calculating a plurality of similarity values when a location base station in an ultra-wideband location system currently receives a pulse response from a location tag, wherein each of the similarity values represents the degree of similarity between the currently received pulse response and one of a plurality of reference pulse responses, and the plurality of reference pulse responses are pulse responses from at least one location tag that were previously received by the location base station where the type of signal propagation between the location base station and the at least one location tag is a specific type of signal propagation; and
determining, based on the plurality of similarity values, a current type of signal propagation between the location base station and the location tag.